From c093b83c9c5ad3ba92e9153569be6e27476403ea Mon Sep 17 00:00:00 2001
From: Louis Pilfold <louis@lpil.uk>
Date: Sat, 9 Dec 2023 12:23:02 +0000
Subject: Functions

---
 lessons/src/lesson015_anonymous_functions/code.gleam | 14 ++++++++++++++
 lessons/src/lesson015_anonymous_functions/text.html  |  7 +++++++
 2 files changed, 21 insertions(+)
 create mode 100644 lessons/src/lesson015_anonymous_functions/code.gleam
 create mode 100644 lessons/src/lesson015_anonymous_functions/text.html

(limited to 'lessons/src/lesson015_anonymous_functions')

diff --git a/lessons/src/lesson015_anonymous_functions/code.gleam b/lessons/src/lesson015_anonymous_functions/code.gleam
new file mode 100644
index 0000000..9f536d9
--- /dev/null
+++ b/lessons/src/lesson015_anonymous_functions/code.gleam
@@ -0,0 +1,14 @@
+import gleam/io
+
+pub fn main() {
+  // Assign an anonymous function to a variable
+  let add_one = fn(a) { a + 1 }
+  io.debug(twice(1, add_one))
+
+  // Pass an anonymous function as an argument
+  io.debug(twice(1, fn(a) { a * 2 }))
+}
+
+fn twice(a: Int, function: fn(Int) -> Int) -> Int {
+  function(function(a))
+}
diff --git a/lessons/src/lesson015_anonymous_functions/text.html b/lessons/src/lesson015_anonymous_functions/text.html
new file mode 100644
index 0000000..f7bea3f
--- /dev/null
+++ b/lessons/src/lesson015_anonymous_functions/text.html
@@ -0,0 +1,7 @@
+<p>
+  As well as module-level named functions, Gleam has anonymous function
+  literals.
+</p>
+<p>
+  Anonymous functions can be used interchangeably with named functions.
+</p>
-- 
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